Large exchange bias enhancement in (Pt(or Pd)/Co)/IrMn/Co trilayers with ultrathin IrMn thanks to interfacial Cu dusting

被引：15

作者：

Vinai, G. ^{[1
,2
]}

Moritz, J. ^{[3
]}

Bandiera, S. ^{[2
]}

Prejbeanu, I. L. ^{[1
]}

Dieny, B. ^{[1
]}

机构：

[1] CEA Grenoble, CNRS, UMR CEA 8191, SPINTEC,UJF,Grenoble INP,INAC, F-38054 Grenoble, France

[2] Crocus Technol, F-38054 Grenoble, France

[3] Univ Lorraine, Inst Jean Lamour, UMR CNRS 7198, F-54506 Vandoeuvre Les Nancy, France

来源：

APPLIED PHYSICS LETTERS | 2014年 / 104卷 / 16期

关键词：

NONMAGNETIC SPACER; THIN-FILMS; ANISOTROPY; BILAYERS; MODEL; LAYER; SYSTEM; FE;

D O I：

10.1063/1.4872265

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The magnitude of exchange bias (H-ex) at room temperature can be significantly enhanced in IrMn/Co and (Pt(or Pd)/Co)/IrMn/Co structures thanks to the insertion of an ultrathin Cu dusting layer at the IrMn/Co interface. The combination of trilayer structure and interfacial Cu dusting leads to a three-fold increase in H-ex as compared to the conventional IrMn/Co bilayer structure, with an increased blocking temperature (T-B) and a concave curvature of the temperature dependence H-ex(T), ideal for improved Thermally Assisted-Magnetic Random Access Memory storage layer. This exchange bias enhancement is ascribed to a reduction of the spin frustration at the IrMn/Co interface thanks to interfacial Cu addition. (C) 2014 AIP Publishing LLC.

引用

页数：4

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